Patents by Inventor Yujin Motoyama

Yujin Motoyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fiber constituted from carbon nanotube and method for manufacturing same
    Patent number: 11686019
    Abstract: The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 ?m-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 27, 2023
    Assignees: National Institute of Advanced Industrial Science and Technology, Asahi Kasei Kabushiki Kaisha
    Inventors: Ken Mukai, Shuhei Ikenaga, Kinji Asaka, Toru Morita, Yujin Motoyama, Yuta Saito
  • Fiber Constituted from Carbon Nanotube and Method for Manufacturing Same
    Publication number: 20210071320
    Abstract: The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 ?m-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.
    Type: Application
    Filed: October 11, 2018
    Publication date: March 11, 2021
    Applicants: National Institute of Advanced Industrial Science and Technology, Asahi Kasei Kabushiki Kaisha
    Inventors: Ken Mukai, Shuhei Ikenaga, Kinji Asaka, Toru Morita, Yujin Motoyama, Yuta Saito